Ribbon mechanism for type-writers.



No. 837,554. l PATENTED DEO. 4, l1906. WR. FOX & G. J. BARRETT. RIBBON MEOHANISM FOR TYPE WRITERS.

APPLICATION FILED JULY 31, 1902.

l 4 SHEETS-SHEET 1.4

@hun

No. 837,554. PATENTED DEC.4, 1906.

W. R. Rox E G. J. BARRETT. RIBBON MEGEANISM EOR TYPE WRITERS.

APPLICATION FILED JULY 31, 1902.

4 SHEETS-SHEET 2.

. Wtrgessesv:

PATENTED DEC. 4, 1906. W. R. FOX & G. J. BARRETT.

RIBBON MECHANISM FOR TYPE WRITERS.

APPLICATION FILED JULY 81, 1902.

4 SHEETS-SHEET 3.

@lz/M L ML @m QM No. 837,554. 'PATENTED DEC. 4, 1906. W. R. FOX & G. J. BARRETT.

` RIBBON MEGHANISM FOR TYPE WRITERS.

APPLICATION FILED JULYBl, 1902.

4 SHEETS-SHEET 4.

Wtgasses: l lvelgtorw UNTED' STATES ATRA enero.

WiLLrAM R@ Fox ANDGLENN J. BARRETT, or GRAND RAPIDS, MicHL. GAN, AssIeNoRs To FOX MAcHiNE COMPANY, F GRAND RAPIDS,

MGHIGAN.

FHBBON MECHNBSNI FOR TYPEW RITERS Speccaton .of Letters Patent.-

Patented. Dec. 4, 1906.

- [replication ned my 31,1902. serai Naiivms'.

To @ZZ whom t may can/cern.'

Be it known that we, WILLIAM. R. Fox and GLENN J. BARRETT, citizensof the United provements in Ribbon Mechanism for Typel States, residing at the city of Grand Rapids, in thecounty of Kent and State of Michigan,

have invented certain new' and useful Im- Writers, 'of which the followingis a 'specification.

i This invention relates to improvements in type-writers, Aand particularly to improvements in the ribbon .mechanism for type writers.

011e `object of our invention is to provide animproved automatic reverse mechanism' for the` ribbon which shallaccomplish its purpose without any strain on the ribbon mechanism; second, to provide an improved ribbon-guide; third, to provide 'improved means `for moving .the ribbon laterally; fourth, to provide improved means for supporting and guiding the spools; fifth, to provide an improyed ribbon-guidefhinged to swing the ribbon to one :side ofthe typebasket to facilitate the cleaning -of the type.

Further objects will deiinitely appear in the detailed description to follow We accomplish the` objects of our inven tionby the'devices. and means described in the following specification. g

A structure embodying the features of our invention is clearly'illustrated inthe accompany-ing drawings, in which-l Figure 1 is a detail slde elevation of a typewriting machine' embodying the features of" our improved ribbon mechanism, Iportions of the frame being broken away to show details of construction. Fig. 2 is anenlarged horizontal detail sectional view taken on \a line corresponding to line 2 2 of Fig. 1, showing the locationl of the various actuating means for the ribbon, portions being shown in full lines and the portions of the type-writer not relating to the ribbon-movement being omitted. Fig. 3 is a detail side view of the feeding-ratchetV means for securing the lateral movement of the ribbon.4 Fig. 4 is a detailV transverse sectional view of the rear portion of the machine,`parts`being broken away to give a clear view of the essential parts ofthe ribbon mechanism appearing in Fig. y2, other portions of the type-writer being'omitted. F1g:5.'1s a detail sectional view through the spool-guide `and tripping-weight of' our improved mechanism, taken on line 5 of Fig. 2. 'Figli is a detail sectional view on line 6 6 of Fig. 5, showing-details and relations of the ribbon-guide. Fior. 7 'is a detail sectional View on line 7 7 0ia i tion of the partof the trip mechanism api pearin'g atthat point. Fig; 8 isa detail plan view of the right-hand portion of the rockshaft S with its arms and 'counterweight as it' appears in Fig. 4. Fig. 9 is a detail transverse sectional view on line 9 9 of Fig. `4f,

Fig. 4;.showing theposishowing the position and relations of the trip mechanism at that point. Fig. 10 is an 'enlarged detail plan -view of the hinged ribbon-guide for delivering the ribbon in proper relations beneath the platen and the'auXiliary paper-guides at each end. Fi 11 is an end elevation. view of the hinge guide, taken from' the left hand of Fig. 10,

showing the guide and its support andthe chine, and A the top plate, which may be provided with all` the usual ap urtenances of a type-Writer. 'In the stan ard of'the Inlachme at each side ofthe machine are su ported shafts C, the same 'being preferab y' inserted by -holes' being drilled through the back standards and suitable retaining means provided.. On each of these shafts arev support-ed ribbonspools the construction of i which clearly appears in Figs. 2 and 5. The `same consist of central wooden cores L with thin sheet-metalilanges c at each side. The spool is 'carried on a sleeve L', which is adaptf ed to slideback and forth on the shaft C. The spool is prevented from rotation by the pin C, secured to the arm C', which is mned to the shaft C. The pin Cy extends rough IOO ahole in the flange 'c'and' into a recess h in the. core L. In the core. Lis also cut a broadnotch h. Over this is preferably. arranged av little-lid "t, supportedon 'a pivot '21', the lid y 5 conforming to. the peri hery of the core L andmalrin the same sulbstantially continu- ;ous. A suitable collar with a grrooveis rovided on the rear end of the sleeve LVto a ord enga ement for the mechanism by which the ro spoo reciprocatedinits bearin Supported on a light rodb, rigidly secured v to the arm b and parallel with- .the aXis ofthe s-ool',` is a small'guiding-roll' consisting "of" an ed ends dd, adapted to iit just within 1' 5 the anges c c of the spool and a light tubular A body d. Overthis the ribbon passes, the

same serving as an idler and 1 uide therefor,v

andv it is .carried back. and fort by the spool, 4the flanges of which engage it.

'2o The rock-shaft D is at each end of the machine and beneath the spools. This carries 'an arm H, cur-ved atits upper end .to rest against the spool and pass freely over it until thev ribbon is unwound therefrom, when its 2 5 point engages und-er the little lid i and throws 1t back, Vthe arm Swingin slightly into the notch. The counterweig t H holds this arm H into gentle contact with the peri 'hery of the body of the spool as it is woun and.

gears-c at eac end opposit'elyfacing. These are arranged tofmesh alternately with bevelg earsa a on each side of the 4ribbon-shaft C. 45 A bevel-gear O is carried by the shaft O, on

which the spring-drum P forL` driving the carriage is'mounte'd. The spring-drum is-c'on-n nected by the band B to `an arm'B on the carriage. This gear O meshes with 'the 5o bevel-gear m, which is carried by the shaft K. This gear is always `held in proper relation `vand'in mesh with the gear O by the shaft O, extending into anv annular groove n s The shaft 5 5 K is free to-reciprocate through this gear, sov

in the hub, fn.. of such gearing m.

i for eifeCting this shifting consists of a ratchet- The ribbonspools are vdriven or actuated bythe. drivin -shaft K, whichcarriesbevel--.

BergerieY rotated. From "this it will be seen -that when the shaft K is shifted-to one end of the machine the ribbon-spool at that endwill be actuated, and when it is shifted to the opposite end it will engage and drive the spool at that 7o end in the opposite direction, releasing the .j one it firstengaged. As the ears are oppositely arranged, the spools wil of course be driven in ofpposite directions, thus winding the ribbon lom one spool to theother alter- 75 nate'ly, as is usual in type-writing machines. Sprin s o are provided-on .the shafts C, so that t ey are heldvyieldingly forward to ins sure propermeshing of the gear. The means4 8o wheel 12C-which is secured to the .outer back end ofthe shaft O. Y.

R is a double pawl which vis forked and f embraces both sides of the ratchet-wheel P The 'pawl R is pivotally connected to a longi- 8 5 tudinally-moving pitman M. The pitman M is supportedat the rear of the machine on thev lug y" by. means -of a shouldered screw s, which passes through the longitudinal slot s" in the pitman. Atthe other end of this pitman M is a lateral-projectmg stud or arm which embraces the driving-shaft K. K is a collar rigidly secured lto this shaft," and between this collar K andthe stud M and; between the said stud M and theg'fearsl a. (at the left 95 of` Fig. 2) are interposed coiled springs l. l. The object of these springs is to form 4 a longitudinal yieldingconnection between the pitman and the reversing or driving shaft K. s

Beneath the shaft K and suitably supportroo edv in bearings in the rearposts ofthe frame 'v is a rock-shaft S.. Tothe left of the yframean arm S projects inwardly and is in position to v be. actuated .by the arinD on the rock-shaft D at that end of the machine already dee-'105 scribed. An arm T projects in the opposite direction onthe shaft. S toward the righthand end of themachine, and the'arr' N eX- tendsl inwardly and rearwardly and then downwardly from the rock-shaft D, so as-to. ro

contact with thisarm T, so. that when the rock-shaft D is` actuated the arm N will contactA withfthe arm T 'andv rock the shaft S in the opposite direction. An-arm T extends down from the rock-shaft S, and to this is connected a spring u, which puts tension'on the same andholds the rock-shaft normally and yieldingly in the central position. An arm U, provided with small counterweights U extends rearwardly from the 'shaft and a pi-tman u extendsfrom this `arm upwardly and pivotally connects atl t" -to the pawl R, already described.- l v We have enumerated allv of the parts ofthe improved ribbon-'reversingl mechanism. It 12 5 will be seen that the operation .ofthe device is substantially as follows: `VVelwill sa'ythat the spool at the left-handend of the machine as it is illustrated in Fig-4 becomes unwound. The uppery end ofthe arm. HA is allowed to drop into the depression h. 4This allows the counterweight H to rock the shaft D downward in that direction. The arm D 4thus drops into contact with the arm S' of the rock-shaft S, rocking the shaft S gear a to engage the gears, and .thus wind the ribbon onto the left-hands eol. It will be seen that this is; accomplis ed without any force being exertedby the spool or ribbon.

The spool is notched merely to allow the weight H' to drop a little, which trips the mechanism, and the reversing is effected by Vthe -force generated by thefs ring-drum 'v When the movement of the spoo is reversed, the lid closes the-recess h in the spool, and

' the ribbon is wound upon that spool until it is entirely unwound'from the opposite spool, y where a similar. operation -takes lace bythe' mechanism describedthere, .wit :the exceptionthatthe arm N on the rock-shaft B at the right end of the machine is-extended to.. the oppositeV side of the rock-shaft Sand, when 1t is acted upon, rocks the shaftS in the' opposite direction, which causes. the up er tooth to engage the top side of the rato et P and shift the driving-shaft, in that direction.l The ratchet-teeth P'. and the pawlteeth are so shaped that when the shlfting is accomplished -they disengage automatically, the`teeth of the pawl moving beyond the ran e of action of the ratchet-wheel. We

accomp shthe transverse movement of our ribbon preferably from the spacer-bar. The

rock-shaft F is su ported at the rear of the machine, fromw ch arms-E extend upwardly at each endand are provided with links E, which extend forwardly Vand vem-` brace ;annular grooves in the collars onthe sleeves L', which carry the ribbon-s ools. Anvarm containing alongitudinal slotv eX- tends downwardly from theshaftF and embraces a wrist-pin e' on a disk e, carried b a ratchet-wheel J on the Apin J onjabrac et J. A detentawlA f prevents backward movement of t 'e ratchet, and thev actuating- `p awlg'is connected to the spacer-bar lever g" andis held in normalengagement by a s ring g, whereby on Aevery movement o the spacer-bar a step-by-step -movement'will be imparted to the ratchet J', which, of course, owing to the connection of the arm 1 rocks the shaft 4and carries the ribbon-spools back and forth, thereby imparting movement 'to them and mov-ing them laterally across the printing-space, whereby the complete surface of the rlbbon will be utilized for writing purposes.

This serves to .tion of the ribbon from t e front.

guide and guide is hinged. -The ribbon-guide is made up of forwardly-extending end pieces V V', which extend y'preferably beyond the farthermost pointof the lateral movement of the ribbon. The central plates -V Vare separated from the parts Vl V" by suitable slots and are arranged to extend over the top o f the ribbon, a considerable space beingleft at the center for the ribbonto 'be driven upward by the impact ofthe type into contact with the platen above. These parts V V and V V' are preferably formed from a single sheet of metal. Beneath the parts V V and. to each lside of the central recesses or apertures lare fingers lv" fv', on which Vthe ribbon rests and over which it-plays freely, it beinga very satisfactory su port for ribbon in this position. The parts V), together at' the front, but are left open, so that the ribbon can be slipped in between them intothe pro er relation without the necessity of threading through the apertures in the plate, which is now in common 'practice with many type-writer manufacturers. Theforward ends of the parts V are slightly upturned to insure the proper deflection of the paper in passing over t em and also to afford .a `broad throat or s ace for the inser- It will thusfbe observed that our improved ribbonguide serves also in ameasure as a paperrevents unnecessary contact of the' paper with the ribbon, alsoinsuring that the ribbon will contact'with the paper only at the printing-point. The paper-guide feature of. theportions Vis supplemented by an;

'proved-'mechanism minutely in detail, be-

cause they are in the form which we considermost practical 'and most efficient. We de- 4.sire to remark, however, that the details canabe .our mvention. Y

greatly lvaried without departing from The particular form of spring andarms- V', and fu' are not connected IOO IIC

and pawls'which .we-have employed can of course be indefinitely varied. We desire to state also that we are aware that while we believe the means we' have shown for supporting the'spools is especially `well adapted for these purposes there are other means which might be provided that would coperate very satisfactorily with the remainingl mechanism. We also. desire to remark t at our improved reversing mechanism is adapted to different styles oftype-writers and vthat our tripping mechanisml might be made use ofin we claim as new,and desire t9 secure by Lettion of a l, In a type-writing machine, vthe combinapair of ribbon-spools mounted upon suitable shafts, one atV each side ofthe "machine, and movable' longitudinally Athereon and revoluble therewith.; means-for revolving the said spools in conjunction -With the car-f -liege-springmechanism; a ratchet J fixed on the shaft J, `arranged transversely across the machine towardthe rear thereof; a pawl G pivotally connected to Ithe word-spacer lever G', arranged to engage" said ratchet; a` spring g for urging thesai'dpawl'into theenthe teeth-ofthe ratchet arock-shaftF eXtend' ing transversely across the vmachine toward the rearthereof -upwardly-extunding arms E towardv each end of said'shaft; links E connected 'tothe upper ends of said-arms Elgwith 'suitable collars on the said spools; a downwardlyextendilarm l on said rock-shaft F,

having a longitu al' slot therein; a wrist-pin e carried by the ratchet J to engage the slot.

v I', coacting together, whereby the' upward l ratchet and through its connections shifts movement of the spacer-bar rotates the the ribbon alternately at intervals.

2. The combination in the ribbon meehanj'sm for atype-writerfof the spool havingv thin iianges .c c ateach end, the spool being` adapted to reciprocate along its shaft; a

shaft b parallel with the spool-shaft a spool d with suitable flanges at its end on the v shaft b extending between the flanges c c and adapted to be c arried in" a longitudinal direc- Y tion by the said Spool, co'actingfor the pur# posespecified.

.3.- The combination of a ribbon-spool lon-4 gitudinally. movable on its shaft; 'a shaft -parallel jwithsaid ribbon-shaft and outsidevv of the flangesv of the spool; a guide adapted to reciprocate and rotate on the said second shaft with projecting flanges to engage the i ribbon-spool, whereby it `will be shifted in unison with said spool for the proper guid-` ing of'the ribbon. e

- 4. In a type-writing machine, the combination of an inking ribbon; ribbon spools mounted on suitable shafts C, saidspoolsl havingcores L of wood, or like material,

.with a groove h running lengthwise of the same; rock-shafts D; arms H having coun# terbalances H mounted onl said shafts said arms being adapted to bear against said spool-cores, and to engage the groove h therein; a shaft K having oppositelylfacingv gears atoward each end; gears a fixed to said shafts C; adrum P lsupported on a suitable shaft to which is secured ai beveled each end; gears a m onsaid shaft K/adapte -gear O gear m on's-aidshaft K adapted to .pitman M; springs lZ carried-.bysaid shaft a rock-shaftS;

bearing against said .collar varms'S and T on the said shaft S; arms D I and N on'the shafts D D; adapted to engage the .arms S balance U onthe said shaft S; la springv u secured to an arm T onthe said .rock-shaft S whereby the same 'isheldnormally in one and T respectivelyas the shafts D are rocked; an arm U having. a. counterposition; a-pitman u' extending from said arm U to `the lsaid double'pawl R whereby 5. Ina typeewriting machine, the combi.- nati'on of an .inkin' -ribbon'; ribbonspools mounted on suitab e. shafts C; rock-shar'l'sv D; arms H having .counterbalances H mounted on said-shafts, said arms being adapted-to bear against said spool a shaft K'havin'g opposite -f-acing gears a toward fixed to said shafts. C; a drum P supported o n a suitable shaft to which is secured a beveled ear O; a gear to mesh with said gear O whereby said shaft K is revolved; a ratchet-wheel P on'said drum; a double pawl R having. a pitman M; a lcollar M on said shaft K secured to said pitman -M; springs l carried by said shaft K bearing against said collar arockshaft S; arms .S and T on the said shaftS; arms D and Non the shafts D D adapted to engage the .arms

S and T respectively as the shafts D are rocked; an arm U having a counterbalance U on the said shaft'S; a spring u secured to an 'arm T on the said rock-shaft S whereby the same is held normally in one position; a

pitman u extending from said arm vU to the said double pawl R whereby the said pawls are caused to alternately enga e the said the said pawls are caused to alternately en-j f gage the said ratchet-wheel yPto automatically shift the shaft K,-.substantially as described and for the purpose specied.

Ici

ratchet-wheel IPC-to automatical y shift the '.shaft K, substantiallyas described and for thepurpose speciiied.

6. In a type-writing machine, the combination of an inking-ribbon; ribbon-spools mounted onsuitable shafts C, said spools -having cores L of wood, or like-material,

with a groove h running lengthwise .of the same; rock-shaftsv D; armsH'having coun-y terbalances H mounted on said shafts, said 'arms being adapted to bear against said spool-cores and to engage the grooves h therein; a shaft AK having oppositely-facing gears a toward each end.; gears a fixed to said shafts C a drum P supported on a suitable shaft to which issecured a beveled gear O; a gear ym on said shaft K adapted to III 3Q lman M; a collar M on said shaft K secured are rocked; an arm U having a counterbalance U on the said shaft S; a pitman u extending from the said arm U to the said double pawl R whereby the said pawls are caused to alternately en age the said ratchetwheel P to automatica y shift the shaft K, substantially as -described and for the purpose specified.

7. In a type-writing machine, the combination of an inking-ribbon; ribbon-s ools mounted on suitable shafts C; rock-sha ts D; arms H having counterbalances H"mounted on said shafts, said arms being adapted to bear against said spools; a s haft K having oppositely-facing gears a toward each end; gears a fixed to said shafts C; a drum P supported on a suitable shaft to which is secured abeveled gear O ;v a gear m on said shaft K adapted to mesh with said gear O whereby said shaft K is revolved; a ratchet-wheel P on said drum; a double pawl R having a pitto` said pitman M; springs Z carried by said shaft bearing against said collar; a rock-shaft S; arms S and T on the said shaft S; arms D and N on the shafts D D adapted to engage the arms S and T respectively as the shafts D are rocked; van arm Uhaving a counterbalance U on the said shaft S; a pitmanu eX tending from said arm U to the 4said double pawl R, whereby the said pawls are caused to alternately en age the-said ratchet-wheel P to automatica ly shift the-shaft K, substanially as described and for the purpose specied.

8. In a type-writing machine;l the combi-.

- nation 'of an inking-ribbon; ribbon-s ools mounted on suitable shafts C; rock-sha ts D arms H having oounterbalances Hl mounted on said shafts, said armsbeing adapted to bear against said spools; a shaft K having oppositely-facing gears a toward each end; gears a fixedto said shafts C; a drum P supv ported on a suitable shaft to which is secured a beveled gear O a gear m on said shaft K adapted to mesh with said gear O whereby 'said shaft K isrevolved; a ratchet-wheel P",

on said drum; a double pawl R having a pit'- man M; a collar M on said shaft K secured to said pitman M; a rock-shaft S; arms S and T on the said shaft S; arms DandNon the shafts D D adapted to engage the arms S and T respectively as the shafts D are rocked; an arm U having a counterbalance U on 'the said shaft S; a pitman u extending from said arm U to the said double pawl R 65 whereby the said pawls are caused to alternately engage the said ratchet-wheel P tov automatically shift the shaft K, substantially as described and for the purpose specified.,

9. In atype-writing machine, the combination Aof an inking-ribbon; ribbon-spools mounted on' suitable shafts C; rock-shafts D; arms H having counterbalances H mounted on said shafts, said arms being adapted to bear against said spools; a shaft K having oppositely-facing gears a toward each end; gears a fixed to said shafts C; 'a drum P supported on a suitable shaft to which-is secured a beveled gear C a gear fm on said shaft K V ada ted to mesh with` said gear O whereby 30 sai shaft K is revolved; a 'ratchet-wheel P;' on said drum; a double pawl R connected -to said shaft K; a rock-shaft S; arms S and T on the said shaft S; arms Dand N on the shafts D D adapted to en age the arms S` and T respectively as the sha ts D are rocked; an arm U having a -counterbalance U on the' said shaft S; a pitman u extending from said arm U to the' said double. awlwhereby the said pawls are caused to ail s the said ratchet-wheel P to automatica y shift the shaft K, substantially as described y and for the purpose speciied.V

10. In a type-writing machine, the combination of an inking-ribbon; ribbon-spools therefor mounted on suitable shafts C; rock- Y shafts D, having arms H with counterbalances H', said arms being adapted to bear s against said spools; a shaft K having oppositely-facing gears toward each end; gears al Ioo fixed to said shafts C; a drum'P supported on a suitable shaft to which is securedabev-"- eled gear O ada ted to mesh with suitable. gear on said shaft K, whereby said shaft is v f revolved; a ratchet-wheel on said drum; 1'o5l l pawls connected to said shaft K; a rockshaftA S having arms S and-T; arms D and N on said shafts D, ada ted to engage said. arms S and T respective y as the shaftsD are rocked; connections from saidvrock-shaftS to x 1o the said. double pawl whereby the pawls thereof are caused to alternately engage sald ratchet-wheel to automa'ticall shift the said A shaft K, for the purpose spec' ed. 4 11. In a type-writing machine, the combi- 1 r 5 nation of an inking-ribbon; ribbon-spools therefor mounted on suitable shafts C; rockshafts D having4 arms H with counterbal'- ances H', vsaid arms being adapted to bear against said spools; a shaft K having oppo- I2 o sitel -facinr Gears toward each end; gears a. fixedT to sai shafts C a drum P su ported on l a suitable shaft to which is secured a beveled gear O ada ted lto mesh with suitable gear on said sha t K, whereby said shaft 1s re- 12 5 volved; a ratchet-wheel lon said drum; pawls connected to said shaft K; connections from said shafts D to said pawls; whereby they ternatel'y enga e 9 are caused toV alternately engage said ratchet-l wheel, for the purpose specified.

Y 12. In a type-writing machine, an automatic ribbon-reversing mechanism com rising vthe combination of revoluble rib onspools mounted upon suitable shafts; weighted arms ada ted to bear upon said ribbon or spools; paws adapted to engage a ratchet traveling with the drum, one of said pawls engaging said ratchet from above and the other from below; connections between said weighted arms and said-pawlsito shift the same and throw them alternately into and out of engagementv and connections between said pawls and the ribbon-reversing device, substantially as described.

13. In a type-writing machine, a'idevi'ce `for automatically reversing the direction of I the travel of'the inking-ribbon whenthe end of the same is reached, comprising weighted arms or trips adapted to bear upon said ribbon or spool.; a ratchet-wheel -actuated from the carriage-driving drum; pawls adapted to` cop'erate with the same connections be- 2'5l tween said pawls and ribb ori-reversing device andi- ,connections between said weights, substantially as described;v

14. a ribbon mechanism for'V type-v 1 writers, the combii,ia-tionl` ofribbonLspoolsg a i connected to the reversing-shaft to shft'the 'reversingfgear therefor ;V a pitrnan -yieldingly saime longitudinally; a ratchet- Wheel on the spring-drum for the carriage; a forked pawl ercdyraGing4 said. Aratchet-wheel for actuating the pi'tm'an alternately' in opposite directions; connections toa suitable trip released by the opera-tion of the spools for shifting the said -.pawl to engage the said lratchet-wheelto ace. tua'tc the pitman. to reverse the ribbon mech- .`anism, as specified. v

15.-- Ina; ribbonmechanism for v type writers, the` combination of ribbon-spools,- a

reversifn. 'gear therefor'havifng the usual lon# 'ly-movable shaft; connectionsv from said shaft toA thelspring-drurn for the carria e; a trip ing device cooperating with the l rib 'on-spo() S'tooouplethe connections Tf1-'om the lreversing-vshaft tothe spring-drum 'of the carriage, forthe urposespeciiied. ,i

16, a -r-ib. orimovement for typewriters, the combination of l ribbon-spools a ireversiugf gear therefor having a shifting t means.; connections from said shifting means l to-'the spring-drum for the carriage; a tripping devicecooperating withv the ribbonspools to' couple 'the connections from the reversing means to the springfdrum of, the carria e, for the purpose spe'ciiied.

127'. n a t efwriting machine, the combination of a ri bon-spool having .anenlarged body-With a recess in one side thereof; a shiftshaft having gears mounted thereon for actuating the said spools alternately; an arm i i held yieldingl'y in `contact with, the said spool',

pawlsa'nd said u wrlters, the combination with the top of the the end being arranged tc drop into the recess inthe side of the spool-body; a shifting y mechanism for shifting said shaft; an intermediate trip connected to said arm to throw having'an enlarged body `with a recess in Ione r side thereof; a trip-arm with aportion arranged to rest against saidspool and the ribbon thereon, and arranged to drop into the recessiin the body vthereof when the rbbonis unwound a reversing mechanism for said ribbonspool,connected to a moving part v ofthe vtype-writer operatively independent of the said spools; aconnection from said trip-armto 'said reversing mechanism, whereby the movement of the said trip-arm in descending into the recess in the spool-body wiillthrow the saidv reversing as speciiied. ,i

A. 19. In. a ribbon mechanism for typemachineof a hinged sheet-metal guide having extended portions V V at each end, adapted mechanism into operation,

to extend under the ribbon; central portions" V V separated from the parts V V extencl'-,

ing above the ribbon and-curved slightlyt-upf ward at their .forward ends, having a space between them for the deflection of the ribbon against ythe laten fingers o v extending beneath the ri bon at each sidebffthe o en cen- IOC tral space, which parts are open at t e front, j

coacting for the urpose specil'ied.

.20. In a Irib on mechanism for typewriters, the combination with the top ofthe machine of a sheet-metal guide having extended portions V V at eachend adapted to extend un er the ribbon cen-trai ortions V V, sepa rated from the parts V Aextending abo-ve the ribbon and curved slightly upward -at Vtheir forward ends, having a space betweenA them for the deflection of the ribbon against the platen; fingers o 0" extendingbeneathy the ribbon at eachv side of the open central space, which parts are open at the front; co-

acting for the purpose specified.

21. In a 'ribbon mechanismv for t ewriters, the combination of a ribbon-gulde `consisting of sheet/metal suitably slotted through to the iront for the insertion of the ribbon without threading; a hinge to the rear' of the same arranged and extending in the di# "rection' ofthe ribbon, whereby the ribbon-K guide can be swung up and back for the con. venient insertion of the ribbon into the slots, for the purpose specified.

writer, the combination of a suitable ribbon' I 22.111 thevribbon mechanism for a type-Q i ribbon to su port it in position, the up er In witness whereof We have hereunto set ones of whio are curved slightly upWar at our vhands and seals in the presence of two 1o their forward` ends for the purpose of deflect, witnesses. ing the pa er; auxiliary paper-guides ysup- WILLIAM R. FOX. [L s1] ported on t e frame of the maohinefcurved y GLENN J. BARRETT. [L. 3.]4 i slightly upwardly at their forward ends, to Witnesses: each end of the ribbon mechanism, for the EDWARD G. MATTER,

purpose specified. G. K. MCMULLEN. 

